Elliott e



(No Model.) 7 E. R. MOPFET.

APPARATUS FOR SMELTING AND GALOINING LEAD AND OTHER ORES.

Patented Oct. 27, 1885.

ATTORNEYS.

UNITED STATES PATENT OFFICE.

ELLIOTT R. MO'FFET, OF JOPLI'N, MISSOURI.

APPARATUS FOR SMELTING AND CALCINING LEAD AND OTHER ORES.

SPECI CA forming part of Letters Patent No. 329,199, dated October 27,

Application filed June 30, 1885. Serial No. 170,254. (No model.)

To aZZ whom it may concern.-

Be it known that I, ELLIOTT R. MOFFET, ofJoplin,in the county of Jasper and State of Missouri, have invented a new and useful Improvement in Apparatus for Smelting and Calcining Lead and other Ores, of which the following is a full, clear, and exact description.

This invention relates to the treatment of lead and other ores, in which both a roasting or calcining furnace and a cupola-furnace are used; and it consists in causing the fumes from the roaster or,calcining-furnace to be drawn or passed direct into the cupola-furnace; also, in causing the air which is supplied to the cupola-furnace to be heated by the heat of or from the calcining-furnace.

By this invention not only are the metallic ing drawings, forming a part of this specifi-.

cation, in which similar letters of reference iridicate corresponding parts in both the figures.

Figure 1 represents a front elevation of a roaster or calcining-furnace and cupola-furnace combined, in illustration of my invention; and Fig. 2,a side elevation of the cupolafurnace, in part.

A indicates the calcining-furnace, and B thecupola-furnace combined, and G the floor or ground line, which shows-the calciningfurnace at a suitable elevation in relation to the cupola to secure the required action. The metals from both furnaces flow into a common kettle, D, the stack E of which is made to inclose and keep warm by the heat within it the inclinedspout F, that connects the kettle and roaster, and whereby the metal passing. down said spout into the kettle iscupola,

calcining-furnace, made of an enlarged capacity, with a downward branch, 9, from one side of its upper end, connected with a suction-pan, H, that by a lower branchpipe, g, connects with suitable distributing pipes and nozzles to the cupola-furnace, thus causing the fumes from the roaster or calciningfurnace to be drawn or passed direct into the cupola-furnace, as shown by arrows .70.

I is the blower forsupplying the air to the furnaces-as, for'instance, by a main pipe, h,- into a stand-pipe, i, from which lower branch pipes, is, project, to pass the air into the roaster, and from'the upper end of which a branch pipe, 1, passes, to convey the air warmed by theheat from the roaster or calcining-furnace to the-cupola, the arrows y indicating the course or courses of the air.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1-. The combination, with-the calcining-furnace, the cupola, and the duct or ducts connecting said furnaces and arranged to pass the fumes direct from the calcining-furnace to the cupola-furnace, of a suction device for thus passing said fumes from one .furnace to the other, anda blower with connected ducts 'forsupplying air to both furnaces, substan& tially as and for the purposes specified.

2, The combination, with the connected cal cining and cupola' furnaces, of the blower for supplying air to .both furnaces,'and pipes or ducts for conveying the air to the calcining furnace, land for supplying air warmed by heat derived from the calcining-furnace to the cupola-furnace, essentially as shown and described.

3. The combination, with the elevated calciningfurnace, cupola-furnace connected therewith, and a refiningkettle common to bot-h furnaces, of the spout for passing the metal from the calcining-furnace to the kettle and the stack of the kettle arranged to enclose said spout, whereby the metal passing down said spout is prevented from being chilled, substantially as specified. ELLIOTT R. MOFFE'I.

Witnesses: DANIEL K WEURIOH, S. (LPRIoE. 

